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Recent News and Articles on the Keywords: fmri technology + brain researchers + brain  Related to the article below (Last Update: 5/5/2008)


TechJournal South
Advertisers, neuroscientists trace source of emotions in brain
TechJournal South, NC - May 2, 2008
The feat is another step toward gauging how people feel directly through functional magnetic resonance imaging, or fMRI, and other brain-scanning technology ...
Reputation And Money: New Insights Into How The Brain Processes ...
Science Daily (press release) - Apr 23, 2008
During the games, the subjects' brains were scanned using fMRI, so the researchers could map the brain regions active during different conditions of social ...
Drinking Dampens Ability to Feel Fear
Washington Post, United States - Apr 30, 2008
The fMRI scanner, meanwhile, tracked the levels of activity in parts of the brain where emotions are processed. The researchers found that alcohol boosted ...
Brain Patterns Predict Mistakes
Washington Post, United States - Apr 23, 2008
About 400 rounds of the flanker task exercise were conducted, and an analysis of fMRI brain scans taken during the test revealed that prior to the ...

NewsHour
Social Status is Hard-Wired into the Brain, Study Shows
NewsHour - Apr 25, 2008
But the researchers showed the participants a picture of each supposed other player, and used fMRI to measure brain activation as they did. ...

Canada.com
Praise as good as cash to brain: study
Canada.com, Canada - Apr 24, 2008
Sadato's team studied 19 healthy people using a brain imaging technique known as functional magnetic resonance imaging, or fMRI. In one set of experiments, ...
Dyslexia works differently for those that read Chinese
Ars Technica, MA - Apr 8, 2008
The new study extends some previous work in the area by showing that there are changes in both the structure and activity in a number of brain regions in ...
Why the Next Civil Rights Battle Will Be Over the Mind
RINF.COM, UK - Apr 8, 2008
It?s true that most of this technology is still gestational. But the early experiments are compelling: Some researchers say that fMRI brain scans can detect ...
Price more important than taste: Caltech study reinforced
decanter.com, UK - Apr 18, 2008
The students were given five bottles to rate while undergoing brain scans using functional magnetic resonance imaging, or fMRI. ...
Measurement technology to investigate neurovascular coupling
News-Medical.net, Australia - Apr 17, 2008
To improve the understanding of the underlying processes in the brain, researchers from the Physikalisch-Technische Bundesanstalt (PTB) are working on ...
Source: Google News

Non-linear Fourier Time Series Analysis for Human Brain Mapping by Functional Magnetic Resonance … -
N Lange, SL Zeger - Journal of the Royal Statistical Society: Series C (Applied …, 1997 - Blackwell Synergy
... Brain researchers currently divide the steps of ... the brain include brain pulsation,
neovascular ... obvious ethical limitations, FMRI technology cannot investigate ...

ON THE CHARACTERISTICS OF FUNCTIONAL MAGNETIC RESONANCE IMAGING OF THE BRAIN -
S Ogawa, RS Menon, SG Kim, K Ugurbil - Annual Reviews in Biophysics and Biomolecular Structure, 1998 - Annual Reviews
... been a crucial factor that has made fMRI possible ... This noninvasive technology has
evolved to a point where ... be detected and imaged over the whole brain with high ...

Spatiotemporal analysis of brain electrical fields -
DM Tucker, M Liotti, GF Potts, GS Russell, MI … - Human Brain Mapping, 1994 - doi.wiley.com
... been opened for examination by PET and MRI technologies. ... tion of distinct functional
brain events. Most ERP researchers address the superposition issue within ...

Introduction -
Z Hall, FE Bloom, G Fischbach - Neurobiology of Disease, 2000 - Elsevier
... an almost useless tool for studying the brain, the X ... scan into much more powerful
technologies, as with ... func- tional magnetic resonance imaging (fMRI), both of ...

Brain-computer interface technology: a review of the first international meeting -
JR Wolpaw, N Birbaumer, WJ Heetderks, DJ McFarland … - Rehabilitation Engineering, IEEE Transactions on [see also …, 2000 - ieeexplore.ieee.org
... While the plasticity of the brain makes it difficult to predict the precise ... Sixth,
are other recently developed technologies such as MEG, fMRI, and positron ...

[BOOK] Brain Matters: Translating Research Into Classroom Practice -
P Wolfe, P Wolfe - 2001 - books.google.com
... fMRI is one of the newest brain-imaging techniques to ... how it works, we must first
look at the basic MRI technology. ... An MRI takes advantage of the fact that the ...

Neuronavigation by Intraoperative Three-dimensional Ultrasound: Initial Experience during Brain … -
G Unsgaard, S Ommedal, T Muller, A Gronningsaeter, … - Neurosurgery, 2002 - neurosurgery-online.com
... Intraoperative imaging technologies such as magnetic resonance imaging (MRI) and
ultrasound ... 31, 38), as well as in coping with the brain shift that ...

Emotion Circuits in the Brain -
JE LeDoux - Annual Reviews in Neuroscience, 2000 - Annual Reviews
... to consider this question before examining what has been learned about emotional
circuits, as some of the factors that led brain researchers to turn away from ...

fMRI Studies of Stroop Tasks Reveal Unique Roles of Anterior and Posterior Brain Systems in … -
MT Banich, MP Milham, R Atchley, NJ Cohen, A Webb, … - Journal of Cognitive Neuroscience, 2000 - MIT Press
fMRI Studies of Stroop Tasks Reveal Unique ... creased activity is observed in the posterior
brain region specialized ... D 2000 Massachusetts Institute of Technology ...

[BOOK] Detection of Change: Event-Related Potential and Fmri Findings -
J Polich - 2003 - books.google.com
... Change: Event-Related Potential and fMRI Findings edited ... Research Institute & SAM
Technology RISTO NAATANEN Cognitive Brain Research Unit Department ...

Source: Google Scholar

Columbia Researchers use fMRI Technology to Identify Changes in Brain When Viewing Violent Programs

Behavior Control Center in Brain Less Responsive After Repeated Exposure to Violence
May Lead to Aggressive Behavior 

NEW YORK (Dec. 4, 2007) – Violence is a frequent occurrence in television shows and movies, but can watching it make you behave differently?

 
Although research has shown some correlation between exposure to media violence and real-life violent behavior, there has been little direct neuroscientific support for this theory until now.

Researchers at Columbia University Medical Center’s Functional Magnetic Resonance Imaging (fMRI) Research Center have shown that watching violent programs can cause parts of your brain that suppress aggressive behaviors to become less active (shown in Figure 1).

In a paper in the Dec. 5 on-line issue of PLoS ONE (published by the Public Library of Science), Columbia scientists show that a brain network responsible for suppressing behaviors like inappropriate or unwarranted aggression (including the right lateral orbitofrontal cortex, or right ltOFC, and the amygdala) became less active after study subjects watched several short clips from popular movies depicting acts of violence. These changes could render people less able to control their own aggressive behavior. Indeed the authors found that, even among their own subjects, less activation in this network was characteristic of people reporting an above average tendency to behave aggressively. This characteristic was measured through a personality test.

secondary finding was that after repeated viewings of violence, an area of the brain associated with planning behaviors became more active (shown in Figure 2). This lends further support to the idea that exposure to violence diminishes the brain’s ability to inhibit behavior-related processing.

None of these changes in brain activity occurred when subjects watched non-violent but equally engaging movies depicting scenes of horror or physical activity.

Joy Hirsch

“These changes in the brain’s behavioral control circuits were specific to the repeated exposure to the violent clips,” said Joy Hirsch, Ph.D., professor of Functional Neuroradiology, Psychology, and Neuroscience and Director of the Center for fMRI at CUMC, and the PLoS ONE paper’s senior author. “Even when the level of action in the control movies was comparable, we just did not observe the same changes in brain response that we did when the subjects viewed the violent clips.”

Joy Hirsch, Ph.D.

 

Christopher Kelly

“Depictions of violent acts have become very common in the popular media,” said Christopher Kelly, the first author on the paper and a current CUMC medical student. “Our findings demonstrate for the first time that watching media depictions of violence does influence processing in parts of the brain that control behaviors like aggression. This is an important finding, and further research should examine very closely how these changes affect real-life behavior.”

Christopher Kelly

 

Jack Grinband

Jack Grinband, Ph.D., a post-doctoral fellow in the Department of Neuroscience, fMRI Research Center , also was a leading author of this paper.

Jack Grinband, Ph.D.

 

 

# # #

Columbia University Medical Center provides international leadership in basic, pre-clinical and clinical research, in medical and health sciences education, and in patient care. The medical center trains future leaders and includes the dedicated work of many physicians, scientists, nurses, dentists, and public health professionals at the College of Physicians & Surgeons, the Mailman School of Public Health, the College of Dental Medicine, the School of Nursing, the biomedical departments of the Graduate School of Arts and Sciences, and allied research centers and institutions. For more information about Columbia University Medical Center, visit www.cumc.columbia.edu


EDITORS PLEASE NOTE: The following fMRI brain images showing the areas activated after viewing violent stimuli are available in print quality format by request.

Figure 1:

Figure 1

© 2007, Columbia  University Medical  Center.

Figure 1 cutline: The yellow area of the brain is the right lateral orbitofrontal cortex, or right ltOFC, which has been previously associated with decreased control over a variety of behaviors, including reactive aggression. The first graph illustrates that as the number of violent movies watched increased, the right ltOFC activity diminished. The second graph shows that when subjects watched the non-violent control clips, there were no systematic changes in the activation of this area.


Figure 2:

Figure 2

© 2007, Columbia  University Medical  Center.

Figure 2 cutline: The yellow area shows the supplementary motor cortex, the part of the brain responsible for planning and imagining behaviors. The first graph illustrates that as the number of violent movies watched increased, the supplementary motor activity increased. The second graph shows that when subjects watched the non-violent control clips, there were no systematic changes in the activation of this area. 

 
 
 
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